pixel The theory of rising damp
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11 Jan 2015
How much water can a brick absorb? - that depends on what type it is, and how hard it is burned How much water can a brick absorb? - that depends on what type it is, and how hard it is burned

If you suspect you have moisture in your home, is likely that your first thought will be rising damp.

Any surveyor or damp specialist you invite into your home will take one look, perhaps poke their specialist damp meter into your wall, and proclaim that your home is, indeed, suffering from rising damp, and the best rising damp treatment is surely a new, or renewed, vapor barrier.

The theory of rising damp goes like this - some call it a "theory" as there is some doubt whether rising damp actually exists.
This is a rather surprising statement, so let's look in detail a little later, for now, however, we will continue to examine the theory of damp.

The theory of rising damp, what is and how it works?

Rising damp

Water (damp) from the ground rises up, through bricks, stone or other masonry of the house, through capillary action. This is the same action that means if you dip the end of a tissue or piece of paper into your cup of tea, the liquid will gradually creep up it - this then causes your walls to be 'damp'.

The Vapor barrier is an impermeable layer, fitted low down in the wall, a good few inches above ground level, which is intended to stop the damp in the wall rising above this layer.

A vapor barrier has been recognized as "Rising Damp" treatment for many years. although, curiously 'Rising Damp' as a concept has only existed since 1962.

Depending on the age of your home or when it had the steam barrier fitted (if any) could be one of several different types. All new homes are now required by law to have a vapor barrier equipped as increased wet treatment and prevention.

If capillary moisture exists, or it is penetrating moisture or condensation, here is a simple reason why you have moisture in the wall, and a solution for how you get rid of the moisture.

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Read 3301 times Last modified on Sunday, 15 March 2015 18:50

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